Photoshop provides tools for creating and manipulating static images for use on the Web. You can divide an image into slices, add links and HTML text optimize the slices, and save the image as a Web page. The template layout is already sliced, so you just need to save the image for use as a Web page. When you save the image for use as a Web page, you must choose to generate an HTML file (select File >Save for Web... Select HTML and Images (from "save as type" menu) to generate all files required to use the artwork as a Web page). Photoshop generate an HTML file and separate image files for the slices in the artwork. This file contains information that tells a Web browser what to display when it loads the page.
Upload all the generated files (HTML and all slices) to your hosting space.